Belgian Blue bulls look like they are made of muscle because they have a mutation in the gene that codes for the protein myostatin. In humans, as in other types of cattle, myostatin normally limits the number of muscle fibers that form before birth and then limits the growth of those fibers later on.
Credit Courtesy of Se-Jin Lee and Alexandra McPherron / PNAS
Lance Armstrong crosses the finish line at the end of stage 15 of the 2009 Tour de France from Pontarlier to Verbier on July 19, 2009 in Verbier, Switzerland. Armstrong has admitted to using the anemia drug known as EPO.
Research intended to help people with muscle-wasting diseases could be about to launch a new era in performance-enhancing drugs.
The research has produced several muscle-building drugs now being tested in people with medical problems, including muscular dystrophy, cancer and kidney disease. The drugs all work by blocking a substance called myostatin that the body normally produces to keep muscles from getting too big.
In the wake of Hurricane Sandy, libraries in New York helped the storm's victims turn a new page. Librarians helped thousands of people fill out relief forms, connect to the Internet and make plans to rebuild.
The New Dorp branch of the New York Public Library in Staten Island wasn't damaged during Sandy. But just a few blocks away, houses were inundated with as much as 16 feet of water. And days after the storm, many of the library's patrons still lacked the most basic services.
D-Day soldiers landing on Omaha Beach. A naked Vietnamese girl running from napalm. A Spanish loyalist, collapsing to the ground in death. These images of war, and some 300 others, are on view at the Corcoran Gallery of Art in Washington, D.C., in an exhibition called WAR/PHOTOGRAPHY: Images of Armed Conflict and Its Aftermath. Pictures from the mid-19th century to today, taken by commercial photographers, military photographers, amateurs and artists capture 165 years of conflict.
Viola Liuzzo carries her shoes while walking with other civil rights activist before she was shot and killed in Alabama. Liuzzo-Prado says her mother walked barefoot whenever she could. "She just hated shoes." When her body was removed from the car she was shot in, she was barefoot.
Credit Courtesy of the Liuzzo family
Liuzzo was shot to death by Ku Klux Klan members following a voting rights march in Alabama.
Sally Liuzzo-Prado stands in a park dedicated to her mother, Viola Liuzzo, a civil rights activist who was killed in Alabama.
For the past few months, NPR has been commemorating the monumental summer of 1963 by looking at watershed moments in the civil rights movement. In this three-part series, Karen Grigsby Bates talks with the children of civil rights leaders who lost their lives in the battle for racial equality.
In an obscure corner of Detroit, there's a battered playground honoring a civil rights martyr. It has an overgrown baseball field, some missing swings and on a broken fence, a worn, wooden sign.